Introduction. Research goal ; Rationale ; Object of study and research questions ; Organization of the dissertation ; Summary ; Glossary of terms -- Review of the literature. Contextual structures ; Emergent properties ; Summary -- Methodology. Introduction ; Scientific paradigms ; Research design ; Conclusion -- Findings. Introduction ; The site ; The study process ; Presentation of findings ; Summary -- Explanations and conclusions. Introduction ; Emergent properties ; Explanations ; Conclusions ; Summary -- Appendix A. Interview protocol.